Archived posting to the Leica Users Group, 2010/04/22
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Frank the new external thread metal lens hoods have been used on the new 18, the new 21 and both the new 24's. The designs are more compact/efficient and they are all metal instead of plastic. Much more robust and you can fit filters inside them if desired. Generic hoods that fit the filter threads are obviously still an option (but the new ones are included with the lenses anyway). For the cheaper Summarits you pay extra for the hoods. So every new Leica M design has a screw on metal hood since the introduction of the Summarits (except the Noctilux). I know that some current ZM designs have bayonet on hoods, I don't think that is a common method for modern Leica M lenses? None that I know about anyway. You know that the Aspheric elements don't 'float' and they are not related to 'back focus' right? The floating elements do improve close in performance and I think minimise focus shift as you stop down, I 'd stand correction on that last. The superb Summilux 50 ASPH. and APO Summicrom 75 ASPH. that I have both use this and I think were the earlier implementation of this technology. Peter Karbe and his team shoud be venerated as optical Dieties! Cheers Geoff http://www.pbase.com/hoppyman On 22 April 2010 15:30, Frank Filippone <red735i at earthlink.net> wrote: > And the lens has a screw on lens hood...... This is a pretty big change for > Leica..... for a long time, they have all bayoneted on..... ( exception > being the WATE, and the Summarits.. and maybe others I do not know ) > > about.....) > > > Frank Filippone > red735i at earthlink.net > > > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information >